sour orange

sour orange

n. In both senses also called bigarade, bitter orange, Seville orange.

1. A spiny evergreen tree (Citrus aurantium) native to southern Vietnam and widely cultivated in warmer regions, having globose, reddish-orange, highly acidic fruit.

2. The fruit of this tree.

Thesaurus

Noun	1.	sour orange - any of various common orange trees yielding sour or bitter fruit; used as grafting stock bigarade, bitter orange, bitter orange tree, Citrus aurantium, marmalade orange, Seville orange bitter orange, Seville orange, sour orange - highly acidic orange used especially in marmalade genus Citrus - orange; lemon; lime; etc. orange tree, orange - any citrus tree bearing oranges
	2.	sour orange - highly acidic orange used especially in marmalade bitter orange, Seville orange orange - round yellow to orange fruit of any of several citrus trees bigarade, bitter orange, bitter orange tree, Citrus aurantium, marmalade orange, Seville orange, sour orange - any of various common orange trees yielding sour or bitter fruit; used as grafting stock